Molding apparatus



June l2, 1923.

J. F. PARSONS HOLDING APPARATUS 1921 2 Sheets-Sheet l Filed Dec E /(|I 6l 40 Z IIIII June 12, i923. i Mmm J. F. PARSONS MOLDING APPARATUS Filed Dec. 1e 1921 2 sheets-sheet 2 Patented .lune l2, T1923..

UNETTD STATES JOHN F. PARSONS, OF PULLMAN, MICHIGAN. v

HOLDING- APPARATUS.

Application led December 16, 1921.

To all whom 'it may concern:

Be it lmown that I, JOHN F. PARSONS, a citizen of the United States, residin at Pullman, in the county of Allegan and tate of Michi an, have invented certan new and useful mprovements in Molding Aparatus, of which the following is a specication. My invention relates to molding apparatus, for forming cases or boxes from plastic material, which cases are adapted to receive soil, and to the cases produced by such apparatus.

An important object of the invention is to provide apparatus for molding the case with its side or sides integral, and its top and bottom open.

A further object of the invention is to provide molding apparatus for forming the bottom of the case, such apparatus forming a plurality of bottoms at one time.

A further object of the invention is to provide means adapted to cooperate with the bottom forming mold, whereby the mold may produce narrow slabs,` employed in forming a retainer about the casing.

Other objects and advantages of the invention will be apparent during the course of the following description.

ln the accompanying drawing forming a part of this specification, and in which like numerals are employed todesignate like .parts throughout the same.

Fig. 1 is a plan view of mold apparatus embodying my invention.

Fig. 2 is a perspective view of Vone side thereof,

Fig. 3 is a vertical section taken on line 8-3 of Fig. 1.

Fig. 4 is a perspective view of the inner post and associated arms,

Fig. 5 is a perspective view of the mold case, showing a plant therein,

Fig. 6 is a vertical section through a portion of the case,

Fig. 7 is a fragmentary perspective view of the outer casing of the mold apparatus.

Fig. 8 is a plan view of the mold apparatus for producing the bottom,

Fig. 9 is afragmentary perspective view .of the core of this mold apparatus showing a division plate separated therefrom,

Fig. 10 is a plan view of the mold apparatus showing intermediate division plates, for forming narrow slabs,

Serial No. 522,826.

Fig. 11 is a perspective view lof the intermediate division plate, and,

Fig. 12 is a perspective view of the case, with its bottom separated therefrom.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, attention being called to Figs. 1 to 7 inclusive, the numeral 15 designates the outer casing of the mold, including sides 16. l have shown 4 of these sides arranged. at a right angle to each other, as the case to be molded is to be rectangular, but of course the number of sides may vary depending uopn the shape of the case to be constructed. 'Each side 16a may be p-rovided near its top and bottom, and at one end, with screwV threaded rods 17 rigidly secured thereto. These rods are adapted to enter notches 18 in'catches 19, rigidly secured to the end of the adjacent side 16. A nut 20 engages the bolt 17, and may be turned thereon by a handle 21. It is obvious that other suitable means might be employed to detachably connect the ends of the sides 16.

The sides 16 constitute an outer casing, as above stated, which is preferably'square and preferably has a length equal to its width. Arranged within the outer casing is a collapsible coredesignated as a'whole by the numeral 22. This core embodies four sides 23, each side including sections 24. The sections 24 of different sides are hinged together at their outer edges, as shown at 25. At their inner edges, the sections 24 of each side have leaf hinges 26 secured thereto, adjacent their upper and lower ends, and the inner ends 27 receive therebetweenvertically swinging arms 28, which are pivoted thereto by bolts 29 or the like.

The arms 28 extend inwardly and are pivotally connected with a post 30, embodying four angle irons 31, assembled in a group to form passages 32, to receive the inner ends of the arms 28, these inner ends being pivoted to the angle irons 31 by bolts 33. A handle or loop 34 is connected with the top of the post 30, and is employed to raise and lower the core 22 and to collapse the same. rThe core may be raised manually or connected with a hoist and raised by the same, if desired.

In the use of this form of apparatus, the outer casing 15 is first assembled and vertically arranged, upon the ground, or upon a thevconcrete 'in' the hole, eXteriorly o suitableplatform or foundation, if desired. The collapsible core22 is now lowered into vthe casing 15 and is expanded therein, and

assumes a central position within the casing 15. When thus expanded, concrete or other vplastic material is fed into the passage between the core and casing, and this concrete is of course allowed to set;` After the concrete is sufficiently hard, the post 30 is elevated, which servesto collapse the ycore 22, whereby the core may be removed. The sides 16 of the casing 15 are now disconnected and the concrete case or boX is comf pleted.

may dig a suitablehole in the ground, and

place the expanded core 22 therein, and our the core. The core is subsequently removed, and the case remains in theground.

I have found that in some land, that the case or boX may. be used satisfactorily without a bottom, while in other land, where the soil is very 'damp or'sandy, it is necessary to providefa concrete bottom 36 for the boX.

This bottom is made by` the apparatus shown in Figs. 8 tol() inclusive.

Inthis apparatusthe same outer casing "15 is employed; I also employ the collapsible core 22,I which is identical with the core 22, except for certain changes to be now described.` In- Fig. 9` it will be seen that certain of the knuckles 24:', have been cut away, and a knuckle 37 'carried by a diagonal division plate 35 ysubstituted therefor'. The knuckles 241 and 37 are connected by 4the rod 25. It is thus seen that the division plates 38 are diagonally arranged at the corners of the corev 22, and divide the passage between the core and the casing 15 into fourcompartments, which are all filled with concrete, and when the collapsible core 22 is 'removed the plates 38 are 'withdrawn and four separate bottoms 36 thus produced. This is regarded as an iinport'ant feature of the invention.

When using the case 35 for some purposes,such as for planting trees therein, I have found it advantageous to produce a retainingcasing about the case 35, to retain additional moisture, and fin order that rich soil may be spread upon the surface of the ground between the case 35 and' 'the retainer. This retainer I construct of narrowslab's, which I also can produce.. by the mold shown in Figs. 8 and 10, by emthrough this concrete to the interiorof the case. When the bottom ofthe case is used, in very wet land, this is particularly true,

but when the.l bottom is omitted, the inisa ture also readily passes upwardly thro`t gh such `bottom opening. f

It is to be understood that the forms of my invention herewith shown and described,

are to be taken as preferred examplesof the same, and that variousf'changes in the shape, size,andarrangement of parts may be resorted to without departing from the spirit 'of invention or the scope of the subjoined claims.

I-Iaving -thus described my invention, I claim: f

1. In lmolding apparatus ofthecharacter ldescribed, an outer casing, Va collapsible Y core adapted to be arrangedfztherein,` said core embodying a plurality of sides, each side'comprising a pairof sections, the outer ends of the sections of one side beinghinged to the outer ends of thefsectio'n 'of .the ad'- jacent sides, hinged leaves connected with the inner ends vof the sections ofeach side and extending inwardly, `a post, and l arms pivotally connected with .the postto. swing vertically and havingftheir router. ends. ar-

ranged between the inner ends .of kthe leaf hinges and pivotally connected therewith;

2. In molding apparatus ofthe character described, an outerl casing, an inner -collapsibl'e core, said core comprising a plurality of sides, eachsidepin'c'luding a pair of sections., the sections 'of one sidefb'eing hinged vto the ends of the sectionsin .the adjacent sides, apostarranged `within the core, arms connected with Ithe posti and hinged to the inner `portions of said sections, vand division lp'latesarranged at the corners of thek core and having a'fhinged connection therewith.' i f v 3. In apparatus' fof the! character described,y an outer casing, a collapsible core therein, .comprising'sides, eachy side including a pairof sections, said sectionsbei'ng provided at their outer vedges with knuckles, the knuckles of thesections offene side cooperate with the knuckles ofthe section of the'adjacent sides,xa rod passing .through said corporating knuckles.y to pivotally connect them, division lplates'arranged at "the cornersof the coreand having knuckles to corporate with the-knuckles of said sections and receiving the rods, means pivotally conizo neoting the inner edges of said sections, and means to contract and expand said core.

4. In apparatus of the character described, an outer easing a collapsible core therein including sides hinged at their corners, division plates arranged diagonally at said corners and having pivotal connection with the hinges of the sides, and intermediate division plates hinged to the sides and arranged between the diagonal division l0 plates. I

In testimony whereof I ax :my-signature in presence vof two witnesses.

i JOI-IN F. PARSONS.

Witnesses 

